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lesson 9
1 hour

Writing Addition and Subtraction Expressions


Description

Students write expressions that record addition and subtraction operations with numbers through the use of models. With a bar diagram, students understand that any number 𝑎 plus any number 𝑏 is the same as adding the numbers 𝑏 + 𝑎.

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Credits

From EngageNY.org of the New York State Education Department. Grade 6 Mathematics Module 4, Topic D, Lesson 9. Available from engageny.org/resource/grade-6-mathematics-module-4-topic-d-lesson-9; accessed 2015-05-29.
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